270 lines
5.7 KiB
Plaintext
270 lines
5.7 KiB
Plaintext
DROP TABLE IF EXISTS t1;
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CREATE TABLE t1 (a INT, b CHAR(8)) ENGINE=xengine;
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SHOW CREATE TABLE t1;
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Table Create Table
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t1 CREATE TABLE `t1` (
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`a` int(11) DEFAULT NULL,
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`b` char(8) COLLATE utf8mb4_general_ci DEFAULT NULL
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) ENGINE=XENGINE DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_general_ci
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SHOW COLUMNS IN t1;
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Field Type Null Key Default Extra
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a int(11) YES NULL
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b char(8) YES NULL
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INSERT INTO t1 (a,b) VALUES (76,'bar');
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INSERT INTO t1 (a,b) VALUES (35,'foo');
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INSERT INTO t1 (a,b) VALUES (77,'baz');
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SELECT * FROM t1 WHERE a = 35;
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a b
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35 foo
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SELECT * FROM t1 WHERE a = 35 AND b = 'foo';
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a b
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35 foo
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SELECT * FROM t1 WHERE a = 77 OR b = 'bar';
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a b
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76 bar
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77 baz
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SELECT * FROM t1 WHERE a > 35;
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a b
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76 bar
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77 baz
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SELECT * FROM t1;
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a b
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35 foo
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76 bar
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77 baz
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UPDATE t1 SET a=a+100;
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SELECT * FROM t1;
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a b
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135 foo
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176 bar
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177 baz
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UPDATE t1 SET a=a-100, b='bbb' WHERE a>100;
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SELECT * FROM t1;
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a b
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35 bbb
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76 bbb
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77 bbb
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UPDATE t1 SET a=300, b='ccc' WHERE a>70;
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SELECT * FROM t1;
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a b
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300 ccc
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300 ccc
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35 bbb
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UPDATE t1 SET a=123 WHERE a=35;
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SELECT * FROM t1;
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a b
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123 bbb
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300 ccc
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300 ccc
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UPDATE t1 SET a=321 WHERE b='ccc';
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SELECT * FROM t1;
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a b
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123 bbb
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321 ccc
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321 ccc
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# restart
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INSERT INTO t1 (a,b) VALUES (45,'bob');
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SELECT * FROM t1;
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a b
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123 bbb
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321 ccc
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321 ccc
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45 bob
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DELETE FROM t1 WHERE a=123;
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SELECT * FROM t1;
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a b
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321 ccc
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321 ccc
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45 bob
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DELETE FROM t1 WHERE b > 'bbb' AND a > 100;
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SELECT * FROM t1;
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a b
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45 bob
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TRUNCATE TABLE t1;
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DROP TABLE t1;
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CREATE TABLE t1 (a INT, c CHAR(8)) ENGINE=xengine;
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INSERT INTO t1 VALUES (1,'a'),(5,'z');
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ALTER TABLE t1 ADD COLUMN b INT;
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SHOW CREATE TABLE t1;
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Table Create Table
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t1 CREATE TABLE `t1` (
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`a` int(11) DEFAULT NULL,
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`c` char(8) COLLATE utf8mb4_general_ci DEFAULT NULL,
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`b` int(11) DEFAULT NULL
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) ENGINE=XENGINE DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_general_ci
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SELECT * FROM t1;
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a c b
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1 a NULL
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5 z NULL
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ALTER TABLE t1 DROP COLUMN b;
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SHOW CREATE TABLE t1;
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Table Create Table
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t1 CREATE TABLE `t1` (
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`a` int(11) DEFAULT NULL,
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`c` char(8) COLLATE utf8mb4_general_ci DEFAULT NULL
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) ENGINE=XENGINE DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_general_ci
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SELECT * FROM t1;
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a c
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1 a
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5 z
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DROP TABLE t1;
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CREATE TABLE t1 (a INT, b CHAR(8), pk INT AUTO_INCREMENT PRIMARY KEY) ENGINE=xengine;
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ALTER TABLE t1 DROP COLUMN pk;
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SHOW CREATE TABLE t1;
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Table Create Table
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t1 CREATE TABLE `t1` (
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`a` int(11) DEFAULT NULL,
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`b` char(8) COLLATE utf8mb4_general_ci DEFAULT NULL
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) ENGINE=XENGINE DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_general_ci
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SHOW COLUMNS IN t1;
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Field Type Null Key Default Extra
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a int(11) YES NULL
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b char(8) YES NULL
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INSERT INTO t1 (a,b) VALUES (76,'bar');
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INSERT INTO t1 (a,b) VALUES (35,'foo');
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INSERT INTO t1 (a,b) VALUES (77,'baz');
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SELECT * FROM t1 WHERE a = 35;
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a b
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35 foo
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SELECT * FROM t1 WHERE a = 35 AND b = 'foo';
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a b
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35 foo
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SELECT * FROM t1 WHERE a = 77 OR b = 'bar';
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a b
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76 bar
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77 baz
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SELECT * FROM t1 WHERE a > 35;
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a b
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76 bar
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77 baz
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SELECT * FROM t1;
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a b
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35 foo
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76 bar
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77 baz
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UPDATE t1 SET a=a+100;
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SELECT * FROM t1;
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a b
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135 foo
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176 bar
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177 baz
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UPDATE t1 SET a=a-100, b='bbb' WHERE a>100;
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SELECT * FROM t1;
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a b
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35 bbb
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76 bbb
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77 bbb
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UPDATE t1 SET a=300, b='ccc' WHERE a>70;
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SELECT * FROM t1;
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a b
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300 ccc
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300 ccc
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35 bbb
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UPDATE t1 SET a=123 WHERE a=35;
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SELECT * FROM t1;
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a b
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123 bbb
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300 ccc
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300 ccc
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UPDATE t1 SET a=321 WHERE b='ccc';
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SELECT * FROM t1;
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a b
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123 bbb
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321 ccc
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321 ccc
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# restart
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INSERT INTO t1 (a,b) VALUES (45,'bob');
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SELECT * FROM t1;
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a b
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123 bbb
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321 ccc
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321 ccc
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45 bob
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DELETE FROM t1 WHERE a=123;
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SELECT * FROM t1;
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a b
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321 ccc
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321 ccc
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45 bob
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DELETE FROM t1 WHERE b > 'bbb' AND a > 100;
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SELECT * FROM t1;
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a b
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45 bob
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TRUNCATE TABLE t1;
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DROP TABLE t1;
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DROP TABLE IF EXISTS t1,t2;
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CREATE TABLE t1 (a INT, b CHAR(8)) ENGINE=xengine;
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INSERT INTO t1 (a,b) VALUES (1,'a'),(2,'b');
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CREATE TABLE t2 (a INT, b CHAR(8)) ENGINE=xengine;
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CHECK TABLE t1;
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Table Op Msg_type Msg_text
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test.t1 check status OK
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INSERT INTO t1 (a,b) VALUES (3,'c');
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INSERT INTO t2 (a,b) VALUES (4,'d');
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CHECK TABLE t1, t2 FOR UPGRADE;
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Table Op Msg_type Msg_text
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test.t1 check status OK
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test.t2 check status OK
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INSERT INTO t2 (a,b) VALUES (5,'e');
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CHECK TABLE t2 QUICK;
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Table Op Msg_type Msg_text
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test.t2 check status OK
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INSERT INTO t1 (a,b) VALUES (6,'f');
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CHECK TABLE t1 FAST;
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Table Op Msg_type Msg_text
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test.t1 check status OK
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INSERT INTO t1 (a,b) VALUES (7,'g');
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INSERT INTO t2 (a,b) VALUES (8,'h');
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CHECK TABLE t2, t1 MEDIUM;
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Table Op Msg_type Msg_text
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test.t2 check status OK
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test.t1 check status OK
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INSERT INTO t1 (a,b) VALUES (9,'i');
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INSERT INTO t2 (a,b) VALUES (10,'j');
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CHECK TABLE t1, t2 EXTENDED;
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Table Op Msg_type Msg_text
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test.t1 check status OK
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test.t2 check status OK
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INSERT INTO t1 (a,b) VALUES (11,'k');
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CHECK TABLE t1 CHANGED;
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Table Op Msg_type Msg_text
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test.t1 check status OK
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DROP TABLE t1, t2;
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CREATE TABLE t1 (a INT, b CHAR(8), UNIQUE INDEX(a)) ENGINE=XENGINE;
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INSERT INTO t1 (a,b) VALUES (1,'a'),(2,'b');
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INSERT INTO t1 (a,b) VALUES (1,'c');
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ERROR 23000: Duplicate entry '1' for key 'a'
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SELECT * FROM t1;
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a b
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1 a
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2 b
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SELECT * FROM t1 WHERE a = 2;
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a b
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2 b
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EXPLAIN SELECT * FROM t1 WHERE a = 2;
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id select_type table partitions type possible_keys key key_len ref rows filtered Extra
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1 SIMPLE t1 NULL const a a 5 const 1 100.00 NULL
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Warnings:
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Note 1003 /* select#1 */ select '2' AS `a`,'b' AS `b` from `test`.`t1` where true
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DROP TABLE t1;
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CREATE TABLE t1 (a INT, b CHAR(8)) ENGINE=xengine;
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SHOW CREATE TABLE t1;
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Table Create Table
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t1 CREATE TABLE `t1` (
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`a` int(11) DEFAULT NULL,
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`b` char(8) COLLATE utf8mb4_general_ci DEFAULT NULL
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) ENGINE=XENGINE DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_general_ci
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SHOW COLUMNS IN t1;
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Field Type Null Key Default Extra
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a int(11) YES NULL
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b char(8) YES NULL
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# restart
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INSERT INTO t1 (a,b) VALUES (35,'foo');
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INSERT INTO t1 (a,b) VALUES (35,'foo');
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INSERT INTO t1 (a,b) VALUES (36,'foo');
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DELETE FROM t1 WHERE a = 35 AND b = 'foo';
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SELECT * FROM t1;
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a b
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36 foo
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DROP TABLE t1;
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